QUOTE(k_yagami @ Mar 14 2012, 12:49 PM)
So the constantly croaking/choking sound during the engine idle is normal? Alright I'll give it a try to prove it, so how about the knocking sound from the back when braking? is it brake drum problem?
Yes, when u outside ur car, you can hear 'tak' when compressor engage (also the fan will spin now) and 'tak again when compressor disengage.
About your rear brake problem, 'several' FLX's owner also experience the same problem as your, you need to go SC to ask for fix or replacement. This one you might ask
dares or any FLX user for opinion.
Added on March 14, 2012, 2:41 pmQUOTE(Gekko @ Mar 14 2012, 02:29 PM)
Thx dares. I'm trying not to add too much stuff. Worried that it might make FC worse.
Added on March 14, 2012, 2:33 pmThx V12Kompressor. Hehe my right foot not very obedient larĀ

Will take u and dares advise as it will only be very little improvement.
Our car have O2 sensor @ extractor there, if you change to drop-in/open pod filter, it will slightly increase the power, but if more air is out from exhaust, means O2 sensor will detect it and ECU will inject more fuel into combustion.
Take it this way, if you need 2 part of fuel to run the car @ 10km/h, with or w/o after market filter you still need 2 parts of fuel to run @ the same speed. Just with after market filter, you can climb from 0 - 10km/h slightly faster only. This is how we can feel the 'power'.
This post has been edited by coolkwc: Mar 14 2012, 02:43 PM